Engine and cylinder cover oil return device thereof

The utility model discloses an engine and a cylinder cover oil return device of the engine, the cylinder cover oil return device comprises a cylinder cover body, the cylinder cover body is provided with a top side oil return channel, and engine oil on the top side of the cylinder cover body can flow back through the top side oil return channel; and the oil return gear is arranged on the cylinder cover body and can drive engine oil on the top side of the cylinder cover body to flow in the top side oil return channel in the rotating process. By means of the structural design of the cylinder cover oil return device, engine oil on the top side of the cylinder cover can effectively and rapidly flow back. 本实用新型公开了一种发动机及其缸盖回油装置，缸盖回油装置包括：缸盖本体，所述缸盖本体上开设有顶侧回油通道，所述缸盖本体顶侧的机油能够经所述顶侧回油通道回流；设置在所述缸盖本体上的回油齿轮，所述回油齿轮旋转过程中能够带动缸盖本体顶侧的机油在所述顶侧回油通道内流动。该缸盖回油装置的结构设计可以有效地使缸盖顶侧的机油快速回流。